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class Zillion:
def __init__(self,digits):
self.digits = digits
if (1==1):
try:
int(digits)
except ValueError:
raise RuntimeError
def increment(self):
return int(self.digits)+1
def isZero(self):
for n in range (0,len(self.digits)):
if str(self.digits)[n] is not '0':
return False
return True
def toString(self):
return str(self.digits)
#
# TESTS. Test the class Zillion for CSci 1913 Lab 2.
#
# James Moen
# 18 Sep 17
#
# Every test is followed by a comment which shows what must be printed if your
# code works correctly. It also shows how many points the test is worth.
#
try:
z = Zillion('')
except RuntimeError:
print('Empty string')
# It must print 'Empty string' without apostrophes. 2 points.
try:
z = Zillion(' , ')
except RuntimeError:
print('No digits in the string')
# It must print 'No digits in the string' without apostrophes. 2 points.
try:
z = Zillion('1+0')
except RuntimeError:
print('Non-digit in the string')
# It must print 'Non-digit in the string' without apostrophes. 2 points.
try:
z = Zillion('0')
except RuntimeError:
print('This must not be printed')
# It must print nothing. 2 points.
print(z.isZero()) # It must print True. 2 points.
try:
z = Zillion('000000000')
except RuntimeError:
print('This must not be printed')
# It must print nothing. 2 points.
print(z.isZero()) # It must print True. 2 points.
try:
z = Zillion('000 000 000')
except RuntimeError:
print('This must not be printed')
# It must print nothing. 2 points.
print(z.isZero()) # It must print True. 2 points.
try:
z = Zillion('997')
except RuntimeError:
print('This must not be printed')
# It must print nothing. 2 points.
print(z.isZero()) # It must print False. 2 points.
print(z.toString()) # It must print 997. 2 points.
z.increment()
print(z.toString()) # It must print 998. 2 points.
z.increment()
print(z.toString()) # It must print 999. 2 points.
z.increment()
print(z.toString()) # It must print 1000. 2 points.
try:
z = Zillion('0 9,9 9')
except:
print('This must not be printed')
# It must print nothing. 3 points.
z.increment()
print(z.toString()) # It must print 1000. 2 points.
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